Means for inserting insulation in slotted armatures



May 1. 192a. 1,668,192

J. F. CULLIN MEANS FDR INSERTING INSULATION IN SLOTTED ARMATURES Filed June 8. 1927 v 2 Sheets-Sheet 1 INV EN TOR.

ATTORNEY.

May 1. 1928. 1,668,192

J. F. CULLIN MEANS FOR IusER'rIue INSULATION IN SLOTTED \RMATURES ts-Sheat 2 INVENTOR.

A TTORNE Y.

' the body portion 18 Patented May 1, 1928.

JASPER F. CULLIN, OF DETROIT, MICHIGAN.

MEANS FOR INSERTING INSULATION IN SLOTTED ARMATURES.

Application filed June 8,

The present inventionrelates to means for inserting paper insulation in the grooves of armatures of electrical apparatus.

Among the objects of the invention is to greatly reduce-the time required for and the expense oi the operation of placing the paper insulation in suchgrooves.

Another object of the invention is means for simultaneously inserting said insulation in all of the grooves.

Other objects will readily appear to those skilled in the art upon reference to the following description and accompanying'drawings in which Fig. 1 is an elevation with parts in sec.- tion: of a machine embodying tne invention;

Fig. 2 is a section on line 22 of Fig. 1;

Fig. 3 is a section on line 3-3 of Fig. 2;

Fig. 4 is a plan view of the machine showing the parts in one position and Fig. 5 is a similar view showing the parts in another position.

Asindicated in thedrawings, the machine comprises a table 10-supported by a tubular member 11 which extends up therethrough and serves as a support for the armature 12 into which the paper is to be inserted. The armature shaft 18 extending down into tube ll'serves to locate the armature centrally of the table.

The table 10 is provided with a number of slots 15 extending radially from near tube 11, there being as many slots 15' as there are slots in the armature 12.

Extending up through each of slots 15 is a blade 16 formed on the end of a lever 17 pivoted or hinged at its lower end in a collar 18 fixed to tube 11 some distance below table 10. Lever 17 is bent outward as shown and has pivoted thereto as at 19 a link20 whose other end is pivoted to a collar 21 slidably mounted on tube 11. This collar 21 is connected by means of a pin 22 to a rod 23 within tube 11 and is moved up and down thereby. In order to permit such movement, diametrically located slots 24 are provided in tube 11. Rod 23 may be provided with a suitable pedal or other moving means (not shown).

In order to hinge or pivot the relatively large number of links 20 and levers 17 to the collars 18 and 21 without their interfering with each other, it is preferred to make these collars in two parts. One of these comprises which may be integral with the sleeve surrounding tube 11, and the by the scope of the 1927. Serial No. 197,420.

other consists of a flat ring or plate 18 adapted to be secured to the body portion 18*. The body portion 18 will be radially slotted as at 18 to receive the ends of levers 17 and will be drilled in alignment with the slots as at 18, the drill holes being somewhat greater in diameter than the width of the slots 18 and extending slightly above the center line of body 18 as shown best in- Fig. 3. Each of levers 17, or links 20, is then provided with an eye of the same diameter as drill hole 18 and a ball 18 of slightly less diameter placed in the eye and inserted in the drill hole as indicated. Thisball acts as the pivot pin for the lever or link. After all of the lever or link ends have been thus placed in position, the ring or plate 18 is secured in place over the ends of drill holes 18 and slots 18 in any suitable manner.

Collar 21 should be understood to be assembled in a similar manner.

In operating the device an armature 12 with the longitudinal slots 12 is first placed on the table 10 with its shaft- 13 extendingdown into tube 11 and radially positioned so that each slot 12 is in line with a slot 15. Collar 21, being up, the levers 17 are in the position shown in Figs. 1 and 4:. A previously crimped strip of paper 40 is then placed within the ring of blades 16 with each inwardly projecting angle 11 opposite a blade. 'When collar 21 is then moved down to the dotted line position of Fig. 1, the blades move radially inward to the position shown in Fig. 5 and carry the paper into the several slots of armature. When the blades 10 are then moved outwardly by raising collar 21 the paper is let't in the slots and the armature is then ready to receive the windings.

The paper strips 40 may be and preferably are prepared as described in my copending application Serial Number 197 ,4119, filed June 8, 1927,

Having now described the invention and the preferred form of embodiment thereof, it is to be understood that the said invention is to be limited, not to the specific details herein set forth and illustrated, but, only claims which follow.

1. Means for inserting sheet insulation in slotted armatures comprising a support for said armature, a blade opposite each slot in said armature, said blades being spaced from said slots whereby said sheet insulation may be inserted therebetween, and means for moving said blade radially into said slots. 2. Means for inserting sheet insulation in slotted armatures comprising a support for said armature, a blade opposite each slot in said armature, said blades being spaced from said slots whereby said sheet insulation may be inserted therebetween, and means for moving simultaneously said blades radially into said slots.

3. Means for inserting sheet insulation in slotted armatures comprising a table, centrally located means on said table for supporting said armature with its shaft vertical, there being slots in said table radiating from said supporting means, blades extending up through said table slots and means for moving said blades lengthwise of said table slots into and out of the slots in the armature.

4%. Means for inserting sheet insulation in slotted armatures comprising a table, centrally located means on said table for supporting said armature with its shaft vertical, there being slots in said table radiating from said supporting means, blades extending up through said table slots and means for simultaneously moving said blades lengthwise of said table slots into and out oi the slots in the armature.

5. Means for inserting sheet insulation in slotted armatures comprising a table, centrally located means on said table for supporting said armature with its shaft vertical, there being slots in said table radiating from said supporting means, blades extend ing up through said table slots and means for moving said blades lengthwise of said table slots int-o and out of the slots in the armature, said blades being parts of levers V pivoted below said table to a fixed collar and said movingmeans consisting of a second movable collar linked to said blades.

6. Means for inserting sheet insulation in slotted armatures, comprising a tubular supporting member,a collar fixed on said memher and having a plurality of levers pivoted thereon, a second collar slidable on said member above the fixed collar, links pivoted to said second collar and to said levers, means for sliding said second collar on said member to thereby move said levers radially to and from said member, a table supported by the upper end or" said member and provided witha plurality of radial slots through which the upper ends ofsaid levers extend, and blades formed on the upper ends of said levers.

7. Means for inserting sheet insulationin slotted armatures, comprising a tubular supporting member, a collar fixed on said member and having a plurality of levers pivoted thereon, a second collar slidable on said member above the fixed collar, links pivoted to said second collar and to said levers, means for sliding said second collar on said member to thereby move said levers radially to and from said member, a table supported by the upper end of said member and provided with a plurality of radial slots through which the upper ends of said levers extend, and blades formed on the upper ends ofsaid levers, said member extending through said table to receive the armature shaft and act as a support for-the armature.

8. Means for inserting sheet insulation in slotted armatures, comprising a tubular supporting member, a collar fixed on said member and having a plurality of levers pivoted thereon, a second collar slidable on said member above the fixed collar, links pivoted to said second collar and to said levers, a

rod slidable in said tubular member and connected to said second collar whereby to move the latter to thereby move said levers radially to and from said member, a table supported by the upper end of said member and provided with a plurality of radial slots through which the upper ends of said levers extend, and blades formed on the upper ends of said levers.

JASPER r. contra. 

